80839390

素因数分解:

$2^1\times 5^1\times {\mathrm{101}}^1\times {\mathrm{80039}}^1$

素因数の和:80147

約数の個数: 16

約数和(自身を含む): 146953440

約数和(自身を除く): 66114050

約数列:

[1, 2, 5, 10, 101, 202, 505, 1010, 80039, 160078, 400195, 800390, 8083939, 16167878, 40419695, 80839390]

約数ペア:

[(1, 80839390), (2, 40419695), (5, 16167878), (10, 8083939), (101, 800390), (202, 400195), (505, 160078), (1010, 80039)]